Medicament delivery device

Patent metadata

Field	Value
Publication number	US-11844936-B2
Application number	US-201917253705-A
Country	US
Kind code	B2
Filing date	Jun 25, 2019
Priority date	Jun 25, 2018
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

The present invention relates to a medicament delivery device, comprising an outer body, a receptacle for a medicament, a needle for the administration of the medicament, an injection mechanism with an actuating mechanism for injecting the medicament into the patients body, and a needle guard for the needle. The medicament delivery device further comprising a detecting element for the detection of the orientation of the medicament delivery device, and a locking mechanism releasing the actuating mechanism, if the detecting element is in the at least first position, and locking the actuating mechanism, if the detecting element is in the at least second position, wherein the locking mechanism is controlled and/or actuated by the detecting element.

First claim

The invention claimed is:

1. A medicament delivery device comprising:
an outer body;
a receptacle for a medicament to be administered;
a needle for administration of the medicament into a patient's body;
a needle guard for the needle, a distal end of the needle guard having a needle opening for the needle ; and
an actuating mechanism for moving the needle or the receptacle or the needle guard in an axial direction of the medicament delivery device;
a detecting element for detecting an orientation of the medicament delivery device the detecting element being movable between at least a first position and at least a second position,
wherein the detecting element takes the at least first position, if the medicament delivery device is held in an orientation in which the medicament delivery device is usable for injecting the medicament into the patient's body, and
wherein the detecting element takes the at least second position, if the medicament delivery device is held in an orientation that is not suitable for usage or is in a configuration not intended for use in injecting the medicament into the patient's body; and
a locking mechanism releasing the actuating mechanism, if the detecting element is in the at least first position, and locking the actuating mechanism, if the detecting element is in the at least second position, wherein the locking mechanism is movable between a release position and a locking position , wherein the locking mechanism takes the release position, if the detecting element is in the at least first position, wherein the locking mechanism takes the locking position, if the detecting element is in the at least second position,
wherein the locking mechanism has at least one locking element, each of the at least one locking element being movable between the release position and the locking position,
wherein each of the at least one locking element is a detent, a ratchet or a latch, wherein each of the at least one locking element is mounted rotatably or pivotally within or at the outer body,
wherein the actuating mechanism has a recess, an undercut or a step for an engagement of, or for receiving each of the at least one locking element, wherein each of the at least one locking element is in engagement with the recess, the undercut or the step, when the at least one locking element has been moved into the locking position, and
wherein the detecting element is a collar or a ring, and wherein the detecting element is driven or moved by gravity.

2. The medicament delivery device of claim 1 , wherein the locking mechanism, in the release position, is not engaged with the actuating mechanism, and the locking mechanism, in the locking position, is engaged with the actuating mechanism.

3. The medicament delivery device of claim 1 , wherein the locking mechanism is controlled or actuated by the detecting element.

4. The medicament delivery device of claim 1 , wherein each of the at least one locking element is brought into its respective locking position and into engagement with the actuating mechanism by the detecting element.

5. The medicament delivery device of claim 1 , wherein the detecting element has an opening with a face, which interacts with the at least one locking element, when the detecting element moves from the at least first position to the at least second position.

6. The medicament delivery device of claim 1 , wherein the detecting element, in the at least second position, encloses the at least one locking element in their locking position.

7. The medicament delivery device of claim 1 , wherein the receptacle and the needle form a syringe, the syringe being movable by the actuating mechanism in the axial direction of the medicament delivery device, wherein the needle guard for the needle is an integral part of the outer body, and the needle opening for the needle is at the distal end of the outer body.

8. The medicament delivery device of claim 1 , wherein the medicament delivery device is an autoinjector.

9. The medicament delivery device of claim 1 , wherein the needle guard is a part of the actuating mechanism and is movable in the axial direction relative to the outer body, wherein the locking mechanism releases a movement of the needle guard, if the detecting element is in the at least first position, and locks the movement of the needle guard, if the detecting element is in the at least second position.

10. A system comprising:
a medicament delivery device comprising:
an outer body;
a needle for administration of a medicament into a patient's body;
a needle guard for the needle, the needle guard having a needle opening for the needle at a distal end; and
an actuating mechanism for moving the needle or the needle guard in an axial direction of the medicament delivery device;
a detecting element for the detection of an orientation of the medicament delivery device the detecting element being movable between at least a first position and at least a second position,
wherein the detecting element takes the at least first position, if the medicament delivery device is held in the orientation in which the medicament delivery device is usable for injecting the medicament into the patient's body, and
wherein the detecting element takes the at least second position, if the medicament delivery device is held in an orientation that is not suitable for usage or is in a configuration not intended for use in injecting the medicament into the patient's body; and
a locking mechanism releasing the actuating mechanism, if the detecting element is in the at least first position, and locking the actuating mechanism, if the detecting element is in the at least second position, wherein the locking mechanism is movable between a release position and a locking position , wherein the locking mechanism takes the release position, if the detecting element is in the at least first position, wherein the locking mechanism takes the locking position, if the detecting element is in the at least second position,
wherein the locking mechanism has at least one locking element, each of the at least one locking element being movable between the release position and the locking position,
wherein each of the at least one locking element is a detent, a ratchet or a latch, wherein each of the at least one locking element is mounted rotatably or pivotally within or at the outer body,
wherein the actuating mechanism has a recess, an undercut or a step for an engagement of, or for receiving each of the at least one locking element, wherein each of the at least one locking element is in engagement with the recess, the undercut or the step, when the at least one locking element has been moved into the locking position, and
wherein the detecting element is a collar or a ring, and wherein the detecting element is driven or moved by gravity, and

a receptacle, comprising a primary container, mounted in the medicament delivery device, wherein the primary container is filled with the medicament to be administered.

11. The system of claim 10 , wherein the locking mechanism, in the release position, is not engaged with the actuating mechanism, and the locking mechanism, in the locking position, is engaged with the actuating mechanism.

12. The system of claim 10 , wherein the locking mechanism is controlled or actuated by the detecting element.

13. The system of claim 10 , wherein each of the at least one locking element is brought into its respective locking position and into engagement with the actuating mechanism by the detecting element.

14. The system of claim 10 , wherein the detecting element has an opening with a face, which i

Assignees

• Sanofi Sa

Inventors

• Riedel Stephan

Classifications

• B65D83/56

  with arrangements for interruption of dispensing when the container is inverted · CPC title

• A61M5/326 Primary

  Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user · CPC title

• A61M5/20 Primary

  Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically (A61M5/142 {, A61M5/46} take precedence; {hypodermic projectiles F42B12/54}) · CPC title

• A61M5/24

  Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic {(ampoules or carpules A61J1/06)} · CPC title

• A61M5/321

  Means for protection against accidental injuries by used needles · CPC title